secure guest and visitor checkin tool

check1 enables the validation of check1-mobile passports and check1 guest cards with the smartphone.

functions:
- check in and check out by all guests using check1
- Registration of guests who cannot or do not want to obtain a digital passport
- Issuing of optional regular customer cards
- Guest list with anonymized representation of the guests
- Night mode
-100% secure data storage

requirements:
- Location-Account on check1.in with employee access